Datasheet LTC2246H (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | 14-Bit, 25Msps 125°C ADC In LQFP |
| Páginas / Página | 18 / 3 — ANALOG INPUT. The. denotes the specifi cations which apply over the full … |
| Formato / tamaño de archivo | PDF / 205 Kb |
| Idioma del documento | Inglés |
ANALOG INPUT. The. denotes the specifi cations which apply over the full operating temperature range, otherwise
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LTC2246H
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN – AIN ) 2.8V < VDD < 3.5V (Note 7) l ±0.5V to V ±1V V + – IN, CM Analog Input Common Mode (AIN + AIN )/2 Differential Input (Note 7) l 1 1.5 1.9 V Single Ended Input (Note 7) l 0.5 1.5 2 V I + – IN Analog Input Leakage Current 0V < AIN , AIN < VDD l –10 10 μA ISENSE SENSE Input Leakage 0V < SENSE < 1V l –10 10 μA IMODE MODE Pin Leakage l –10 10 μA tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.2 psRMS CMRR Analog Input Common Mode Rejection Ratio 80 dB
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 74.5 dB 12.5MHz Input l 72 74.2 dB 70MHz Input 73.4 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 dB 2nd or 3rd Harmonic 12.5MHz Input l 74 90 dB 70MHz Input 85 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 dB 4th Harmonic or Higher 12.5MHz Input l 78 90 dB 70MHz Input 90 dB S/(N+D) Signal-to-Noise Plus Distortion Ratio 5MHz Input 74.5 dB 12.5MHz Input l 71.5 74.2 dB 70MHz Input 73.4 dB IMD Intermodulation Distortion fIN1 = 4.3MHz, fIN2 = 4.6MHz 90 dB
INTERNAL REFERENCE CHARACTERISTICS TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 1.475 1.500 1.525 V VCM Output Tempco ±25 ppm/°C VCM Line Regulation 2.8V < VDD < 3.5V 3 mV/V VCM Output Regulation –1mA < IOUT < 1mA 4 Ω
DIGITAL INPUTS AND DIGITAL OUTPUTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS LOGIC INPUTS (CLK, OE, SHDN)
VIH High Level Input Voltage VDD = 3V l 2 V VIL Low Level Input Voltage VDD = 3V l 0.8 V IIN Input Current VIN = 0V to VDD l –10 10 μA CIN Input Capacitance (Note 7) 3 pF 2246hfb 3
ANALOG INPUT The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V + – IN Analog Input Range (AIN – AIN ) 2.8V < VDD < 3.5V (Note 7) l ±0.5V to V ±1V V + – IN, CM Analog Input Common Mode (AIN + AIN )/2 Differential Input (Note 7) l 1 1.5 1.9 V Single Ended Input (Note 7) l 0.5 1.5 2 V I + – IN Analog Input Leakage Current 0V < AIN , AIN < VDD l –10 10 μA ISENSE SENSE Input Leakage 0V < SENSE < 1V l –10 10 μA IMODE MODE Pin Leakage l –10 10 μA tAP Sample-and-Hold Acquisition Delay Time 0 ns tJITTER Sample-and-Hold Acquisition Delay Time Jitter 0.2 psRMS CMRR Analog Input Common Mode Rejection Ratio 80 dB
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. AIN = –1dBFS. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input 74.5 dB 12.5MHz Input l 72 74.2 dB 70MHz Input 73.4 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 dB 2nd or 3rd Harmonic 12.5MHz Input l 74 90 dB 70MHz Input 85 dB SFDR Spurious Free Dynamic Range 5MHz Input 90 dB 4th Harmonic or Higher 12.5MHz Input l 78 90 dB 70MHz Input 90 dB S/(N+D) Signal-to-Noise Plus Distortion Ratio 5MHz Input 74.5 dB 12.5MHz Input l 71.5 74.2 dB 70MHz Input 73.4 dB IMD Intermodulation Distortion fIN1 = 4.3MHz, fIN2 = 4.6MHz 90 dB
INTERNAL REFERENCE CHARACTERISTICS TA = 25°C. (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 1.475 1.500 1.525 V VCM Output Tempco ±25 ppm/°C VCM Line Regulation 2.8V < VDD < 3.5V 3 mV/V VCM Output Regulation –1mA < IOUT < 1mA 4 Ω
DIGITAL INPUTS AND DIGITAL OUTPUTS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS LOGIC INPUTS (CLK, OE, SHDN)
VIH High Level Input Voltage VDD = 3V l 2 V VIL Low Level Input Voltage VDD = 3V l 0.8 V IIN Input Current VIN = 0V to VDD l –10 10 μA CIN Input Capacitance (Note 7) 3 pF 2246hfb 3